Influence of Partial Neutralization on Catalytic Activity of Ion Exchange Resin

0105498 - UCHP-M 20040338 CZ eng A - Abstract
Holub, Ladislav - Hanková, Libuše - Jeřábek, Karel
Influence of Partial Neutralization on Catalytic Activity of Ion Exchange Resin.
CD-ROM POC04. Praha, 2004. PO8.
[International Conference on Polymers and Organic Chemistry POC'04 /11./. 18.07.2004-23.07.2004, Praha]
R&D Projects: GA ČR GA104/02/1104
Institutional research plan: CEZ:AV0Z4072921
Keywords : catalytic activity * exchange resin
Subject RIV: CI - Industrial Chemistry, Chemical Engineering

Concentration of acid centers in a commercial ion exchanger catalyst was controlled by partial neutralization of sulfonic groups with various primary, secondary and tertiary amines of different molecular size. The effect of acid centers concentration on the activity of ion exchanger catalyst was tested by measurements of initial reaction rate of reesterification of ethylacetate with propanol in a CSTR-type reactor. There was found that the slope of the dependence of the catalytic activity on the degree of the resin neutralization strongly depends on the amine type. Obtained results indicate that attachment of functional groups to polymer carrier induces not only differences in accessibility of the active groups but also differences in their chemical nature.
Permanent Link: http://hdl.handle.net/11104/0012741